Luke's mind ran in overdrive as he shut Adam's mouth, hoping that this person wouldn't stir up the feared thing, which was either asleep or unconscious behind those big logs. Luke was giving such reactions because what he saw in front of his eyes was nowhere in the realm of possibility.
Werewolves were one of the strongest tribes of the Beastmen races with their King being one of the most feared ones in the Entire World. One of the reasons their tribe is feared is because the entire tribe is blessed by the Goddess of the Moon, Selene. Even the Strongest Beast King, the King ruling over all tribes cannot guarantee victory over the Werewolf Beast King during the Full Moon phase.